Brief insert



FIG. 1 is a perspective view of the invention;

FIG. 2 is a front view of the invention;

FIG. 3 is a back side view of the invention;

FIG. 4 is a right side view of the invention;

FIG. 5 is a left view of the invention;

FIG. 6 is a top view of the invention; and,

FIG. 7 is a bottom view of the invention.

The broken lines shown in FIGS. 1-7 illustrate portions of the brief insert that form no part of the claimed design. 

CLAIM The Ornamental Design for a brief insert, as shown and described. 